TOPRUN 2014 is an interactive cross-company competition in stair walking that was created to motivate employees, act as a sporting activity and promote interaction between colleagues. A Bluetooth low energy protocol tracks the number of stairs climbed by each employee. For the competition, specially configured mini transmitters (beacons) are placed in the stairwell. The competitors automatically receive motivational messages on their smartphones once a beacon is within range. All results are displayed on an internal microsite.